12170711551 has 8 divisors (see below), whose sum is σ = 12435897600. Its totient is φ = 11906842272.

The previous prime is 12170711549. The next prime is 12170711591. The reversal of 12170711551 is 15511707121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12170711551 - 2¹ = 12170711549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170711591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310495 + ... + 347488.

It is an arithmetic number, because the mean of its divisors is an integer number (1554487200).

Almost surely, 2^12170711551 is an apocalyptic number.

12170711551 is a deficient number, since it is larger than the sum of its proper divisors (265186049).

12170711551 is an equidigital number, since it uses as much as digits as its factorization.

12170711551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658385.

The product of its (nonzero) digits is 2450, while the sum is 31.

The spelling of 12170711551 in words is "twelve billion, one hundred seventy million, seven hundred eleven thousand, five hundred fifty-one".